{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"LM4871MX/NOPB","brand":"Texas Instruments","brandSlug":"texas-instruments","productSlug":"LM4871MX-NOPB","canonicalUrl":"https://icboms.com/texas-instruments/LM4871MX-NOPB","factsUrl":"https://icboms.com/api/mcp/products/LM4871MX%2FNOPB","rawCanonicalId":null},"summary":{"shortDescription":"Texas Instruments Boomer® Series Class AB Audio Amplifier, LM4871MX/NOPB, 1-Channel (Mono), 3W x 1 @ 3Ohm, 2V ~ 5.5V Supply, 8-SOIC Surface Mount, Tape & Reel.","salesMarkdown":"## 3W mono into 3Ω — the headline output The LM4871MX/NOPB delivers 3W continuous into a 3Ω load from a single 5V rail — that is the full-scale output for a portable speaker or a single-cell Li-ion powered alert tone generator. Class AB topology keeps crossover distortion low at the expense of quiescent current — the tradeoff is acceptable for battery-powered voice or music playback under 1W average, where a Class D switching amp would add inductor noise and EMI filtering cost. Shutdown pin (active-low) lets a GPIO from the host MCU cut the amplifier quiescent draw to near-zero when the speaker is idle — useful for extending standby time in a battery device.","metaTitle":"TI LM4871MX/NOPB Class AB Audio Amp, 3W Mono 8-SOIC","metaDescription":"Texas Instruments LM4871MX/NOPB Boomer® Class AB audio amplifier, 3W mono output into 3Ω, 2V-5.5V supply, 8-SOIC. Active production, sourced per RFQ.","metaKeywords":null},"attributes":{"series":"Boomer®","packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":"Active","categoryPath":["Analog & Data Acquisition"],"specifications":{"Mfr":"Texas Instruments","Type":"Class AB","Series":"Boomer®","Package":"Tape & Reel (TR); Cut Tape (CT)","Features":"Shutdown, Thermal Protection","Output Type":"1-Channel (Mono)","Mounting Type":"Surface Mount","Package / Case":"8-SOIC (0.154\\\", 3.90mm Width)","Product Status":"Active","lifecycle_stage":"eol_hot","Voltage - Supply":"2V ~ 5.5V","Base Product Number":"LM4871","Operating Temperature":"-40°C~85°C(TA)","Supplier Device Package":"8-SOIC","Max Output Power x Channels @ Load":"3W x 1 @ 3Ohm"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$0.7600","priceTiers":[{"qty":395,"price":"$0.76000","currency":"USD"}]},"links":{"datasheetUrl":"https://cdn.icboms.com/8a46f391f29a466ba3af0aa865e92cea.pdf","sourceUrl":null,"alternativesUrl":"https://icboms.com/api/mcp/products/LM4871MX%2FNOPB/alternatives.json"},"ai":{"faq":[{"question":"What is the output power of the LM4871MX/NOPB into a 3Ω load?","answer":"3W continuous into 3Ω from a 5V supply, specified as Max Output Power x Channels @ Load. Into 8Ω the output is lower — typically 1.5W — but the datasheet curve should be checked for the exact supply vs load tradeoff."},{"question":"What package does the LM4871MX/NOPB come in?","answer":"8-pin SOIC narrow-body (0.154\" width, 3.90 mm), surface-mount. The supplier device package is 8-SOIC."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/texas-instruments/LM4871MX-NOPB","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/texas-instruments/LM4871MX-NOPB when reusing this data. Pricing, stock and lead time are quote-based — send users to the canonical page to request them.","lastUpdated":"2026-08-11T15:49:49.435Z","lastPublished":"2026-08-11T15:49:49.435Z","indexable":true}}